In the Adoliadini vein anastomosis can be variable.
In Euthalia the male has vein 11 & 12 free, but the female of some species may have them anastomosed.
In particular ,in E. monina the female usually have these two veins typically anstomosed but may occasionally be free.
L panopus & aeropa are distinctive enough to be separated from the others, but whether as species-group or genus is up to the taxonomists.
It may not be justifiable to accord generic designation based on the external appearance.
For example Papilio memnon & P. polytes appeared very different in every way , but in the past when Papilio was divided into numerous genera these two were placed in the genus Menelaides without reservation.
Likewise the genera under Graphium are now back as one.
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